IMPROVING EFFICIENCY OF ROCK BREAKING USING PRE-WEAKENING OF ROCK MASS
Aben E.Kh. Malanchuk Z.R. Fedotenko V.S. Orynbaev B.A.
2023Ore and Metals Publishing house
Eurasian Mining
2023#40Issue 262 - 65 pp.
The purpose of this study is to improve the quality of drilling and blasting operations using pre-weakening of rock mass. The approach used in the study involved pilot testing of the pre-weakening technology efficiency at the Ayak-Kodzhan open pit in Kazakhstan. The testing plan included five blasts using the standard technology and five blasts with the pre-weakening technology with subsequent change in the drilling-and-blasting parameters toward their optimization for increasing the breaking efficiency. The K-MINE: Grain Size module (developed by K-MINE, Kryvyi Rih, Ukraine) was used to determine the granulometric composition of blasted rock mass and to assess the quality of fragmentation by blasting during rock excavation. In addition, the rate of rock mass loading to dump trucks, the bench bottom condition and the slope fracturing were evaluated.
blasthole efficiency ratio , burden , explosive , fragmentation quality , ore breaking , pre-weakening
Text of the article Перейти на текст статьи
Satbayev University, Almaty, Kazakhstan
National University of Water and Environmental Engineering, Rovno, Ukraine
Institute of Problems of Integrated Development of Mineral Resources, Moscow, Russian Federation
Satbayev University
National University of Water and Environmental Engineering
Institute of Problems of Integrated Development of Mineral Resources
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026